fraenum [free-nuh m] noun, plural frae·na [free-nuh] /ˈfri nə/..
frenum or frae·num [free-nuh m] noun, plural fre·na [free-nuh] /ˈfri nə/. Anatomy, Zoology. a fold of membrane that checks or restrains the motion of a part, as the fold on the underside of the tongue. Origin of frenum New Latin; Latin frēnum bridle Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for fraenum fraenum frenum noun plural -na (-nə) a fold of membrane or skin, such as the fold beneath the tongue, that supports an organ Word Origin for fraenum C18: from Latin: bridle frenum noun plural -na (-nə) a variant spelling (esp US) ofCollins English Dictionary – Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 fraenum in Medicine frenum [frē′nəm] n. pl. fre•nums A membranous fold of skin or mucous membrane that supports or restricts the movement of a part or organ, such as the small band of tissue connecting the tongue to the floor of the mouth. An anatomical structure resembling such a fold. The American Heritage® Stedman’s Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.